snotez – Typeset notes, in the margin

The pack­age pro­vides a macro \side­note, that places a
note in the mar­gin of the doc­u­ment, with its base­line aligned with
the base­line in the body of the doc­u­ment. Th­ese side­notes are
num­bered (both in the text, and on the notes them­selves).